If you are seeking ways to train yourself to make basketball dunks, jump manual is best suited! But any person who wishes to learn to jump higher can use Jump Manual as their training guide, regardless of the type of sport.
Developed by Jacob Hiller who has trained high school, college, NBA, Olympic athletes, and professional dunkers for more than ten years, the Jump Manual is a vertical jump program that can help you to add about 10 inches or even more to your vertical jump in less than 3
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